package com.tanhua.sso.service;



import com.aliyun.oss.OSSClient;

import com.tanhua.sso.config.AliyunConfig;
import com.tanhua.sso.vo.PicUploadResult;
import org.apache.commons.lang3.RandomUtils;
import org.apache.commons.lang3.StringUtils;
import org.joda.time.DateTime;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;


import java.io.ByteArrayInputStream;
import java.io.IOException;

@Service
public class PicUploadService {

    //允许上传的格式
    private static final String[] IMAGE_TYPE = new String[]{
            ".bmp", ".jpg", ".jpeg", ".gif", ".png"
    };

    @Autowired
    private OSSClient ossClient;

    @Autowired
    private AliyunConfig aliyunConfig;

    public PicUploadResult upload(MultipartFile uploadFile){
        PicUploadResult fileUploadResult=new PicUploadResult();

        boolean isLegal=false;
        for (String type : IMAGE_TYPE) {
            if (StringUtils.endsWithIgnoreCase(uploadFile.getOriginalFilename(),type)) {
                isLegal=true;
                break;
            }
        }
        if (!isLegal){
            fileUploadResult.setStatus("error");
            return fileUploadResult;
        }

        //文件新路径
        String filename = uploadFile.getOriginalFilename();
        String filePath=getFilePath(filename);

        //上传到阿里云
        try {
            ossClient.putObject(aliyunConfig.getBucketName(),filePath,new ByteArrayInputStream(uploadFile.getBytes()));
        } catch (IOException e) {
            e.printStackTrace();
            //上传失败
            fileUploadResult.setStatus("error");
            return fileUploadResult;
        }

        //上传成功
        fileUploadResult.setStatus("done");
        fileUploadResult.setName(aliyunConfig.getUrlPrefix()+filePath);
        fileUploadResult.setUid(String.valueOf(System.currentTimeMillis()));
        fileUploadResult.setResponse("success");
        return fileUploadResult;
    }

    private String getFilePath(String sourceFileName) {
        DateTime dateTime = new DateTime();
        return "images/"+dateTime.toString("yyyy")
                +"/"+dateTime.toString("MM")
                +"/"+dateTime.toString("dd")
                +"/" +System.currentTimeMillis()+ RandomUtils.nextInt(100,9999)
                +"."+ StringUtils.substringAfterLast(sourceFileName,".");
    }

}
